refactor: Admin-Layout komplett entfernt — SDK als einziges Layout

Kaputtes (admin) Layout geloescht (Role-Selection, 404-Sidebar, localhost-Dashboard).
SDK-Flow nach /sdk/sdk-flow verschoben. Route-Gruppe (sdk) aufgeloest.
Root-Seite redirected auf /sdk. ~25 ungenutzte Dateien/Verzeichnisse entfernt.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin-compliance/app/page.tsx

@@ -1,105 +1,5 @@
-'use client'
+import { redirect } from 'next/navigation'
 
-import { useEffect, useState } from 'react'
-import { useRouter } from 'next/navigation'
-import { roles, storeRole, getStoredRole, RoleId } from '@/lib/roles'
-
-// Role icons
-const roleIcons: Record<RoleId, string> = {
-  developer: '👨‍💻',
-  manager: '📊',
-  auditor: '🔍',
-  dsb: '🛡️',
-}
-
-export default function RoleSelectPage() {
-  const router = useRouter()
-  const [loading, setLoading] = useState(true)
-
-  useEffect(() => {
-    // Check if role is already stored
-    const storedRole = getStoredRole()
-    if (storedRole) {
-      // Redirect to dashboard
-      router.replace('/dashboard')
-    } else {
-      setLoading(false)
-    }
-  }, [router])
-
-  const handleRoleSelect = (roleId: RoleId) => {
-    storeRole(roleId)
-    router.push('/dashboard')
-  }
-
-  if (loading) {
-    return (
-      <div className="min-h-screen bg-slate-50 flex items-center justify-center">
-        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-primary-600"></div>
-      </div>
-    )
-  }
-
-  return (
-    <div className="min-h-screen bg-gradient-to-br from-slate-900 via-slate-800 to-slate-900 flex items-center justify-center p-8">
-      <div className="max-w-3xl w-full">
-        {/* Header */}
-        <div className="text-center mb-12">
-          <h1 className="text-4xl font-bold text-white mb-4">
-            Willkommen im Admin Center
-          </h1>
-          <p className="text-lg text-slate-300">
-            Waehlen Sie Ihre Rolle fuer eine optimierte Ansicht:
-          </p>
-        </div>
-
-        {/* Role Cards */}
-        <div className="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
-          {roles.map((role) => (
-            <button
-              key={role.id}
-              onClick={() => handleRoleSelect(role.id)}
-              className="group bg-slate-800/50 hover:bg-slate-700/50 border border-slate-700 hover:border-primary-500 rounded-2xl p-6 text-left transition-all duration-200 hover:scale-[1.02] hover:shadow-xl"
-            >
-              <div className="flex items-start gap-4">
-                <span className="text-4xl">{roleIcons[role.id]}</span>
-                <div>
-                  <h3 className="text-xl font-semibold text-white group-hover:text-primary-400 transition-colors">
-                    {role.name}
-                  </h3>
-                  <p className="text-slate-400 mt-1">{role.description}</p>
-                  <div className="mt-3 flex flex-wrap gap-2">
-                    {role.visibleCategories.slice(0, 3).map((cat) => (
-                      <span
-                        key={cat}
-                        className="px-2 py-1 bg-slate-700/50 rounded text-xs text-slate-300"
-                      >
-                        {cat === 'compliance' && 'DSGVO & Compliance'}
-                        {cat === 'ai' && 'KI & Automatisierung'}
-                        {cat === 'infrastructure' && 'Infrastruktur'}
-                        {cat === 'communication' && 'Kommunikation'}
-                        {cat === 'development' && 'Entwicklung'}
-                      </span>
-                    ))}
-                    {role.visibleCategories.length > 3 && (
-                      <span className="px-2 py-1 bg-slate-700/50 rounded text-xs text-slate-300">
-                        +{role.visibleCategories.length - 3} mehr
-                      </span>
-                    )}
-                  </div>
-                </div>
-              </div>
-            </button>
-          ))}
-        </div>
-
-        {/* Info */}
-        <div className="text-center">
-          <p className="text-sm text-slate-500">
-            Sie koennen Ihre Rolle jederzeit in der Sidebar aendern.
-          </p>
-        </div>
-      </div>
-    </div>
-  )
+export default function Home() {
+  redirect('/sdk')
 }